ok, I am a beginner in darkroom printing and the other night I noticed that I can't get a print sharp from corner to corner of my paper.
and it's not an issue regarding the image on the neg, I can't focus on the grain on the whole picture. to me looks like the neg is not held perfectly parallel with the paper plane.
apologies for not being technical, but as I said, I am a beginner
and if helps, I use a Meopta Axomat with colour head and a Rodenstock Rodagon stopped down to f8 or 5.6...